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DSL-2520U
ADSL2/2+ Router with USB and Ethernet Ports
User Manual
Configuring via Web-based Interface
MAC Filter
The MAC-address-based filtering allows forwarding and blocking traffic subject to the source and
destination MAC addresses.
!
MAC-address-based filtering is active only when the device is configured as a transparent
bridge (the Bridge mode).
On the
Configuration
tab, you can select the operating mode of the MAC filter. Select the
Allow
value from the
Action
drop-down list to allow traffic affected by the rules from the
MAC-
addresses
tab and block the other traffic. Select the
Deny
value from the drop-down list to block
only traffic affected by the rules from the
MAC-addresses
tab.
Figure 44. The
Firewall / MAC-filter
page. The
Configuration
tab.
To create a new rule, proceed to the
MAC-addresses
tab and click the
Add
button.
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DSL-2520U
ADSL2/2+ Router with USB and Ethernet Ports
User Manual
Configuring via Web-based Interface
Figure 45. The
Firewall / MAC-filter
page. The
MAC-addresses
tab.
On the opened page, specify the needed parameters.
Figure 46. The page for adding a rule for MAC-address-based filtering.
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DSL-2520U
ADSL2/2+ Router with USB and Ethernet Ports
User Manual
Configuring via Web-based Interface
Parameter
Description
Source MAC-address
The MAC address of the source host.
Destination MAC-address
The MAC address of the destination host.
Direction
Select a direction for which the rule will be applied.
Protocol
Select a protocol for which the rule will be applied. The
<Any>
value means any protocol from those displayed in the list.
Interface
Select a WAN connection (with the
Bridge
connection type
only) for which the rule will be applied.
Click the
Change
button.
To edit a rule for filtering, select the relevant rule on the
MAC-addresses
tab. On the opened
page, change the needed parameters and click the
Change
button.
To remove a rule for filtering, select the relevant rule on the
MAC-addresses
tab. On the opened
page, click the
Delete
button.
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DSL-2520U
ADSL2/2+ Router with USB and Ethernet Ports
User Manual
Configuring via Web-based Interface
Control
This menu is designed to limit access to certain web sites.
URL Filter
On the
Control / URL-filter
page, you can specify restrictions on access to certain web sites.
Figure 47. The
Control / URL-filter
page. The
Configuration
tab.
To enable the URL filter, select the
Enable/Disable URL filter
checkbox on the
Configuration
tab, then select a needed mode from the
URL-filter
type
drop-down list:
•
Block listed URLs
: when this value is selected, the router blocks access to all addresses
specified on the URL-addresses tab;
•
Block all URLs except listed
: when this value is selected, the router allows access to
addresses specified on the URL-addresses tab and blocks access to all other web sites.
Click the
Change
button.
To specify URL addresses to which the selected filtering will be applied, go to the
URL-
addresses
tab and click the
Add
button.
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DSL-2520U
ADSL2/2+ Router with USB and Ethernet Ports
User Manual
Configuring via Web-based Interface
Figure 48. The
Control / URL-filter
page. The
URL-addresses
tab.
On the opened page, specify the needed parameters.
Figure 49. The page for adding an address for the URL filter.
Enter a URL address in the
URL-address
field, specify a port (as usual, you need to specify port
80 for HTTP), then click the
Save
button.
To remove an address from the list of URL addresses, select the relevant address in the table on the
URL-addresses
tab and click the
Delete
button.
To disable the URL filter, deselect the
Enable/Disable URL filter
checkbox on the
Configuration
tab, then click the
Change
button.
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